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45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
// Range v3 library
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//
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// Copyright Eric Niebler 2014-present
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//
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// Use, modification and distribution is subject to the
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// Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <random>
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#include <vector>
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#include <range/v3/core.hpp>
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#include <range/v3/view/iota.hpp>
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#include <range/v3/view/repeat_n.hpp>
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#include <range/v3/view/for_each.hpp>
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#include <range/v3/view/take.hpp>
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#include <range/v3/algorithm/shuffle.hpp>
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#include <range/v3/algorithm/equal.hpp>
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#include <range/v3/algorithm/is_sorted.hpp>
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#include <range/v3/action/shuffle.hpp>
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#include <range/v3/action/sort.hpp>
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#include <range/v3/action/unique.hpp>
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#include "../simple_test.hpp"
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#include "../test_utils.hpp"
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int main()
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{
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using namespace ranges;
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std::mt19937 gen;
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// [1,2,2,3,3,3,4,4,4,4,5,5,5,5,5,...]
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auto v =
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views::for_each(views::ints(1,100), [](int i){
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return yield_from(views::repeat_n(i,i));
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}) | to<std::vector>();
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check_equal(views::take(v, 15), {1,2,2,3,3,3,4,4,4,4,5,5,5,5,5});
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v |= actions::shuffle(gen);
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CHECK(!is_sorted(v));
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v |= actions::sort | actions::unique;
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CHECK(equal(v, views::ints(1,100)));
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return ::test_result();
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}
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